Rohm is offering an LED driver IC which features built-in display pattern data and automatic illumination control.

The aim being to reduce the load on host CPU. Two models are offered: the BD2802GU (2.8×2.8×1.0mm) designed to drive 6 LEDs, and the BD2812GU (3.1×3.1×1.0mm) which integrates a boost circuit.

The BD2802GU and BD2812GU driver ICs are designed for driving 6 LED lamps (two RBG LEDs).

Both types feature 7-bit gradation (128 steps) and integrate a constant current DAC for lower EMI noise and reduced flickering. Integrated display pattern data enables automatic illumination control, eliminating CPU load.

The display patterns of each of the 6 LEDs can be set individually, and 7-bit (128-step) resolution results in up to 2,097,000 colours.

By changing the device control address both the BD2802GU and BD2812GU can be configured to drive greater number of lamps for larger scale applications.

More information: www.rohmeurope.com